16. _______ medicine works in a human body is a question _______ not everyone can understand fully.
–It must have been lots of fun riding round in a car. –Yes, you know this was the first time that _____ round in my own car.
Until then, his family _____ from him for six months.
It's reported that by the end of this month the output of cement in the factory _____ by about 10%.
Active reading will result in a better understanding of what _____.
The fifth generation computers, with artificial intelligence, _____ and perfected now.